Is it possible..

Lisa • Married 5 years to a wonderful man. Son born 26 Jan 15. Expecting another boy in Nov 16 X
.... To get pregnant with a Luteal phase of 11 days or do I stand a better chance if it was 14 days?
​I'm 6 months into my TTC journey and am hung up my LP length is causing our disappointment.
​I'm a monitoring CM, bbt and using OPKs so am confident we are timing BD well but sometimes I wonder if the simultaneous positive indicators are just a coincidence!!!
​Thanks